Those clips were from both the WWE and the WCW.
The matches are rigged of course but the injuries and brain damage they suffer is very real.
So many of these guys have died very young, also due to steroid and other drug use.
Vince McMahon had wrestling changed from a 'sport' to 'sports entertainment' in the 80's.
This was because if was a sport then legally drug testing was mandatory. If it's entertainment then he didn't have tp do that.
Chris Benoit a Canadian wrestler actually killed his wife and son because of CTE brain damage caused by chronic concussions during his 22 year career. He then took his own life.